通过开环共聚合，合成了3种不同单元比例的ε-己内酯（ε-CL）与L-丙交酯（L-LA）的共聚物P（CL-co-LA）。通过熔融共混制备了聚乳酸（PLA）/聚己内酯（PCL）/P（CL-co-LA）三元共混材料，研究了P（CL-co-LA）对共混材料微观形貌、热性能以及力学性能的影响。结果表明，共聚物P（CL-co-LA）作为PLA/PCL不相容体系的界面增容剂，减小了PCL分散相的尺寸，改善了PLA/PCL共混体系的相容性，提高了共混材料的韧性。固定m（PLA）：m（PCL）：m（P（CL-co-LA））=80：20：10时，以P（CL49/LA51）（其中数字代表摩尔分数（%））作为界面增容剂效果最佳，共混材料的断裂伸长率可达到（210±30）%。
Three copolymers P(CL-co-LA) made from ε-caprolactone(ε-CL) and L-lactide(L-LA) have been synthesized via the ring-opening polymerization(ROP). Copolymers and PCL were added to PLA by melt blending, and then the PLA/PCL/P(CL-co-LA) blends were obtained. The compatibility, thermal and mechanical properties of the blends were studied. The results show that the interface compatibilizer of PLA/PCL blends, P(CL-co-LA) reduces the size of the PCL dispersed phase, moreover, the compatibility and toughness of PLA/PCL blends are enhanced. When the mass ratio of PLA/PCL/P(CL-co-LA) is 80/20/10, P(CL49/LA51), is which the numbers reprent the molar fraction(%), is the most suitable interface compatibilizer, and the elongation at break of the blends reaches as high as (210±30)%.
参考文献
| [1] | Flieger M,Kantorova M,Prell A,et al.Biodegradable Plastics from Renewable Sources[J].Folia Microbiol,2003,48(1):27-44. |
| [2] | YU Tongzhen,ZHANG Zheng,CHANG Yuanliang.Progress in Synthetic Technology and Application of Poly (lactic acid)[J].Shandong Chem Ind,2005,34(4):25-28(in Chinese). 于同珍,张峥,常源亮.聚乳酸的合成技术及应用进展[J].山东化工,2005,34(4):25-28. |
| [3] | XING Yuqing,WU Guiguo,XING Jun.Chemosynthesis of Perfectly Degradable Plastics Polylactic Acid[J].Eng Plast Appl,2002,30(12):57-58(in Chinese). 邢玉清,吴贵国,邢军.化学合成全降解塑料-聚乳酸[J].工程塑料应用,2002,30(12):57-58. |
| [4] | Engelberg I,Kohn J.Physico-Mechanical Properties of Degradable Polymers Used in Medical Applications:A Comparative Study[J].Biomaterials,1991,12(3):292-304. |
| [5] | Ajioka M,Enomoto K,Suzuki K,et al.The Basic Properties of Poly (lactic acid) Produced by the Direct Condensation Polymerization of Lactic Acid[J].J Environ Polym Degrad,1995,3(4):225-234. |
| [6] | Jacobsen S,Fritz H G.Plasticizing Polylactide-The Effect of Different Plasticizers on the Mechanical Properties[J].Polym Eng Sci,1999,39(7):1303-1310. |
| [7] | KANG Hongliang,CHEN Cheng,DONG Lisong.Review of Poly (lactid acid) Based Blends[J].Polym Bull,2004,(5):10-19(in Chinese). 康宏亮,陈成,董丽松.聚乳酸共混体系的研究进展[J].高分子通报,2004,(5):10-19. |
| [8] | ZHANG Han,SUN Zhiqiang,PANG Xuan,et al.Preparation and Properties of Blends from Poly (ε-caprolactone-ran-L-lactide) Random Copolymer and Amorphous Poly (lactic acid)[J].Chinese J Appl Chem,2015,32(11):1268-1274(in Chinese). 张涵,孙志强,庞烜,等.聚(ε-己内酯-L-丙交酯)无规共聚物与聚乳酸共混材料的制备与性能[J].应用化学,2015,32(11):1268-1274. |
| [9] | YANG Yanhui,YAN Han,KANG Xiaomei,et al.Advances in Application Research of Polycaprolactone[J].New Chem Mater,2011,39(12):13-15(in Chinese). 杨延慧,严寒,康晓梅,等.聚己内酯的应用研究进展[J].化工新型材料,2011,39(12):13-15. |
| [10] | Sarazin P,Li G,Orts W J,et al.Binary and Ternary Blends of Polylactide,Polycaprolactone and Thermoplastic Starch[J].Polymer,2008,49(2):599-609. |
| [11] | ZHANG Yisheng,WU Defeng,ZHANG Ming.Phase Morphology and Rheological Behavior of Poly (ε-caprolactone)/Polylactide Blend[J].J Chem Ind Eng,2008,59(10):2645-2651(in Chinese). 张义盛,吴徳峰,张明.聚己内酯/聚乳酸共混体系的相形态及其流变行为[J].化工学报,2008,59(10):2645-2651. |
| [12] | Dell'Erba R,Groeninckx G,Maglio G,et al.Immiscible Polymer Blends of Semicrystalline Biocompatible Components:Thermal Properties and Phase Morphology Analysis of PLLA/PCL Blends[J].Polymer,2001,42(18):7831-7840. |
| [13] | Broz M E,Vanderhart D L,Washburn N R.Structure and Mechanical Properties of Poly (D,L-lactic acid)/Poly (ε-caprolactone) Blends[J].Biomaterials,2003,24(23):4181-4190. |
| [14] | Naito K,Johnson G E,Allara D L,et al.Compatibility in Blends of Poly (methylmethacrylate) and Poly (styrene-co-acrylonitrile).1.Physical Properties[J].Macromolecules,1978,11(6):1260-1265. |
| [15] | Vion J M,Jerome R,Teyssie P,et al.Synthesis,Characterization,and Miscibility of Caprolactone Random Copolymers[J].Macromolecules,1986,19(7):1828-1838. |
| [16] | Ural E,Kesenci K,Fambri L,et al.Poly (D,L-lactide/ε-caprolactone)/Hydroxyapatite Composites[J].Biomaterials,2000,21(21):2147-2154. |
| [17] | Nalampang K,Molloy R,Punyodom W.Synthesis and Characterization of Poly (L-lactide-co-ε-caprolactone) Copolymers:Influence of Sequential Monomer Addition on Chain Microstructure[J].Polym Adv Technol,2007,18(3):240-248. |
| [18] | Choi E J,Park J K,Chang H N.Effect of Polymerization Catalyst on the Microstructure of P (LLA-co-ε-CL)[J].J Polym Sci Polym Phys,1994,32(15):2481-2489. |
| [19] | Shen Y Q,Zhu K J,Shen Z Q,et al.Synthesis and Characterization of Highly Random Copolymer of ε-Caprolactone and D,L-lactide Using Rare Earth Catalyst[J].J Polym Sci Polym Chem,1996,34(9):1799-1805. |
| [20] | Ingrid K S,Hans R K.Zn Lactate-Catalyzed Copolymerization of L-Lactide with Glycolide or ε-Caprolactone[J].Macromol Chem Phys,1998,199(6):1081-1087. |
| [21] | Hans R K,Kirstin B,Heiko H T,et al.Bismuth (Ⅲ)n-Hexanoate and Tin (Ⅱ)2-Ethylhexanoate Initiated Copolymerizations of ε-Caprolactone and L-lactide[J].Macromolecules,2005,38(12):5017-5024. |
| [22] | Fabrice S,Robert J.Polymerization of (L,L)-Lactide and Copolymerization with ε-Caprolactone Initiated by Dibutyltin Dimethoxide in Supercritical Carbon Dioxide[J].J Polym Sci Polym Chem,2005,43(13):2777-2789. |
| [23] | Nomura N,Akita A,Ishii R,et al.Random Copolymerization of ε-Caprolactone with Lactide Using a Homosalen-Al Complex Oxides[J].J Am Chem Soc,2010,132(6):1750-1751. |
| [24] | Kim C H,Cho K Y,Choi E J,et al.Effect of P (L-LA-co-ε-CL) on the Compatibility and Crystallization Behavior of PCL/PLLA Blends[J].J Appl Polym Sci,2000,77(1):226-231. |
| [25] | Yang J M,Chen H L,You J W,et al.Miscibility and Crystallization of Poly (L-lactide)/Poly (ethylene glycol) and Poly (L-lactide)/Poly (ε-caprolactone) Blends[J].Polym J,1997,29(8):657-662. |
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